Wire-drawing machine.



No. 648,384. Patented May I, I900.

' L. BOUET.

WIRE DRAWING MACHINE.

(Application filed. June 9, 1898.) (No Model.) 5 Sheets-Sheet l.

No. 648,384. Patented May l, l900.

L. BUUET.

WIR E DRAWING MACHINE.

7 (Application filed June 9, 1898.) (No Model.) 5 Sheets8heet 2 THENORRIS PETERS so" PHoro-u'rHQ. WASH'NCITON. a. c.

No. 648,384. Patented May I, I900.

' L. BOUET.

WIRE DRAWING MACHINE.

(Application filed June 9. 1898.)

(No Model.) 5 Shasta-Sheet 3.

-. TH: uomus Pack? 60, mmu'ruq. wpmmcrrcn, o. c.

No. 648,384. Patented May l,.l900.

L. BOUET.

WIRE DRAWING MACHINE.

(Application filed June 9, 1898.) (No Model.) 5'Sheets-Sheet 4.

Flchek.

m: ucnms PETERS 00., PHOTO-LIYNO., wmmm'un. n. c.

No. 648,384. Patented May I, I900.

BDUET. WIRE DRAWING MACHINE.

(Application filed Jun 9, 1898.)

UNITED STATES PATENT OFFICE.

LOUIS BOUET, OF SHEFFIELD, ENGLAND, ASSIGNOR OF ONE-HALF TO ARTHURFARNHILL, OF SAME PLACE.

WIRE-DRAWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 648,384, dated May 1,1900.

Application filed une 9, 1898. Serial No. 6821974. (l lo model.)

Letters Patent in England, No. 1,3 75,"dated January 18, 1898,) of whichthe following is a specification.

This invention relates to Wire-drawing machines more particularlyintended for use in the manufacture of the spokes of cycle-wheels,

its object beingto enable the ends of the spokes to be butted, while theintermediate portion is formed either parallel or taper-' ing asdesired.

The machine comprises'afixed head, carrying the dies and mounted upon asuitable base, and a carriage Which can be caused, by means of a rackand pinion, to move away from the fixed head. The carriage has mountedupon it suitably-shaped nippers or the like by means of which the end ofthe wire to be drawn is firmly held. It also carries suitably-shapedguide-plates by means of which motion is imparted to the dies in themanner hereinafter to be described. The fixed head is provided with fourradiating grooves in each of which lies, so as to slide'freely therein,a block which carries a die. The position of the dies in theirrespective sliding blocks may be adj 11sted by means of set-screws.-Atthe outer end of each groove in the head is pivoted a lever providedwith a cam-shaped piece which bears against a friction-roller carried onthe outer end of each sliding block. These levers are arranged toproject from the head at that side of the latter on which is situatedthe drawingcarriage, each lever being. so shaped that a roller carriedat its end will bear upon one of the guide-plates on the carriage. Itwill thus be readily understood that as the carriage moves away from thehead in the act of drawing the Wire through the dies the latter arecaused to approach each other as-the rollers on the ends of the leversmount the inclined planes of the guide-plates.

If desired, the lowermost die may be fixed either by suitably fasteningthe lever controlling it or otherwise, as found convenient,

Fig. 2 is a front elevation.

7 while the other dies are operated, or the top and bottom dies may becaused to first come into action and afterward the two side ones, orvice versa.

Conveniently springs are arranged so as to hold the ends of thedie-operating levers in contact with the guide-plates, springs beingalso arranged, if desired, to cause the dies to open at the end of adraw.

The machine is driven by suitable gearing and may be provided with anautomatic device by means of which the driving-belts or the like areshifted at the end of a draw, so as to reverse the movement of thecarriage, the change of direction of motion being accompanied by achange in the speed of travel of the carriage, so that the latter maymake a quick return, so as to be ready for a fresh draw. i a

It must be understood that the details of the mechanism may be varied tosuit requirements. 7 r

In the accompanying drawings, Figure 1 is a side elevation ofthe'improved machine. Fig. 3 is a plan. Fig. 4 is an enlarged plan ofthe head. Fig. 5 is an enlarged front elevation of the same. Fig. 6 isan enlarged plan of an outer diebox. Fig. 7 is a similar view of aninner diebox. Fig. 8 is a vertical longitudinal sectional view of themachine.

Like letters indicate like partsthroughout the drawings.

From a base A rise legs B, supporting a bed or table 0, upon which is ahead D, carrying die-boxes E, with dies F, which are moved radially inthe manner hereinafter described. To the head D are pivotally attachedlevers G G G the levers G G having cam-shaped pieces G G formed on oneend and the lever G being arranged to operate a similar cam G carriedupon the pivot-pin by which it is attached to the head. The free ends ofthe levers G G G are provided with adjustable runners or rollers HI'I HBehind the head D upon the bed 0 is arranged a sliding carriage K,provided with a rack K to enable it to be moved along the bed. Upon thecarriage K areguide-plates L L L against which lie the rollers H H H onthe ends of the lovers G G G so that as the guide-plates cause thelevers G G G to move about their pivots in the head D. I preferably makethe position .of the rollers 1-1 H H adjustable to the arms G G G andfor this purpose the rollers are carried by short arms 71. h h threadedupon the threaded projections or spindles h of the arms G .G G

Thus by screwing the arms upon the projections h3 the position of therollers will be varied. V vThedie-boxesE areprovided with rollers M,with which the faces of the cams G G G come in contact. Each "of thedie-boxes E has in it a groove, one side of which is undercut. The diesF are beveled to 'fit into this groove, being there retained by platesE, secured bybolts and nuts E E in the man ner shown in Figs. 6 and 7.With this arrangement'the position of the dies F in the die-boxes can beaccurately adjusted by means of set-screws F,the dies being then clampedin position by means of plates E.

The die-boxes can move radially, being guided by plates E the inwardradial movement being brought about by the cams G G G acting'upon therollers M when the levers G G G? are caused to move as thecarriage Ktravels along the bed. On the return of the carriage the die-boxes anddies are caused vto move radially outward by means of springs N. On thebed 0, preferably at the end rethe rack K in position.

mote from the head D, is arranged a spindle P, carrying fast and loosepulleys O and 0. Upon the spindle is keyed a pinion P, which engageswith a toothed wheel P on a spindle P, which carries a pinion P engagingwith the rack K on the carriage K. The spindle -P also carries twosmaller fast and loose pul- A plate R upon the bed 0 serves to retainUpon the-end of the bed'between the two pairs of fast and O to thepulley O. i

loose pulleys is situated a plate or bracket R, which supports a plate Rcarrying guidepins R Plates R 11 slotted to allow the passage of theguide-pins R ,-are arranged so as to slide upon the plate R thesesliding plates carrying at their ends the belt-shifting-forks R R andbeing kept in place by the plates R R The slots in the plates R 3* allowof their being moved a sufficient distance to throw the belts controlledby them in or out of gear.

On a bracket S beneath the bed 0 is pivoted at S a bell-crank lever S,one arm of which is attached to the end of the plate R the other endbeing connected at S by a chain S with a footboard S As will be seen,pressure by the foot on the board S will cause the lever S to turn aboutthe pivot S,.and so shift the position of the belt from the pulley Uponthe-back of the carriage K is a projection K slotted at K to which isadj 11st- 'of the wire to be drawn.

ably attached, by bolts passing through the slot K aplate' K. The latteris curved or with a roller R upon the plate R The plate R carries an armR, at the end of which is a roller R Fig. 1, against which the. curvedplate .K also comes in contact,

thus bringing about the shifting of the belt from the fast pulley O tothe loose pulley O and a corresponding movement of the belt from theloose pulley P ontothe fast'pulley P, the latter belt being arranged todrive the --mechanism, and consequentlythe carriage, in theoppositedirection, giving a quick return.

The arm R on the plate R is extended on the side of thisplat'e remotefrom the roller R this extended part carrying a roller R with whichaplate K carried on the end of .the rack K or otherwise connected to thecarriage K, comes in contact when, the carriage is'returning, the effectbeing to shift the reversing-belt from the fast pulley 1? onto the looseone, P mechanism again, the belt must be shifted by means of the lever Sfrom the loose pulley 0 onto the fast pulley O in the manner previouslydescribed. Y

The carriage K is provided with nipp'ers T, of suitable construction,for nipping the end The nippers are connected to v the carriage K by abolt passing through a slot T in the 'latt-ergthis arrangement allowingof the position of the nippers to be varied relatively to the head.

The plate K as'above described, can be adjusted so as to regulate themoment at which the drawing process is to cease.

The leversG G G are controlled by springs .in order to keep the rollersH H H upon' their respective guide-plates. The arrangement of the springfor controlling the rod G is as follows: 'A rod D attached at one end atD" to the head D, passes across the lever G, and its opposite end isconnected with a rodD", which is attached to one end of a spring D whoseopposite end is attached to a rod D which'is secured to a ring D on thebase A. Thus the tendency of the spring D is to normally retain thelever G in the position represented in Figs. 1 and 8; but'when saidlever has been raise'dunder theaction of the inclined face of the plateL during the forward movement of carriage K and the said carriage isonits return movement the said spring will draw down upon the lever andcause it to assume its normal position when j the inclined face of plateL has freed the roller H. A pin ID on lever G prevents rod D fromslipping. The side levers G G are controlled by means of rods V and V,which are pivoted at V on base A, and said rods are connected beneathbed 0 by a spring V the tendency of which is to normally draw the rodstoward each other. The upper ends of the rods are forked and engagewith'pins V V on the lovers G G Thus when the carriage K is making itsreturn movement the spring by acting to draw the rods toward In order tostart the cam-shaped and arranged to come in contact I guide-plates L L"L levers pivoted on the each other causes the latter to force the leversG G into their normal position (represented in Fig. 3) as soon as theinclined faces of the plates L L have freed the rollers H H In the abovedescription only three dies head adapted to be operated by the platesand cause the dies to converge as the carriage moves away from the headand draws the wire through the dies substantially as described.

2. In a spoke-drawing machine, the combiable carriage, a plate K carriedby the carriage, a main driving-shaft, two sets of fast and loosepulleys thereon, mechanism intermediate the driving-shaft and thecarriage for reciprocating the latter, a plate carried by the carriageand having pins, belt-shifting plates having slots in which the saidpins engage, a roller on one of the belt-shifting plates, an arm on theother plate, rollers on the ends of the latter arm and a plate on thecarriage adapted to operate upon one of the latter rollers when thecarriage is making a return movement, all arranged for cooperationsubstantially as described.

4. In a spokedrawing machine, the combination with a head carryingmovable dies, of r a movable carriage,levers pivotally connected at oneend with the head, rollers carried by the levers and plates on thecarriage having inclined faces adapted to operate upon the rollers asdescribed, and cams arranged to be nation with a fixed head, movabledie-boxes carried thereby and provided with rollers and dies carried bythe die-boxes, of levers G G G2 pivotally connected at one end with thehead and having cam portions at the pivoted end adapted to bear againstthe said rollers, rollers H H II at the opposite end of the levers, theposition of the rollers relatively to the levers being adjustable, amovable carriage, guide-plates L L L carried by the carriage and havinginclined faces against which the rollers are adapted to bear to effectthe inward movement of the die-boxes and dies, springs arranged to movethe die-boxes and dies outwardly when the cam portions of the levers arenot acting upon the rollers of the die-boxes, and mechanism forreciprocating the carriage.

3. In a spoke-drawing machine, the combination with a head carryingdies, of a movoperated by the levers when the latter are operated, toeffect the movement of the dies as set forth.

5.. In a spoke-drawing machine, the combination with a head carryingmovable dies, of levers pivotally connected at one end with the head andhaving a threaded extension at the opposite end, an arm threaded uponeach of said extensions, a roller carried by each of said arms, amovable carriage, plates carried thereby and having inclined facesadaptedto operate upon the rollers, as set forth.

In testimony whereof I have set my hand in the presence of the twosubscribing witnesses;

LOUIS BOUET.

\Vitnesses:

THOMAS HARVEY, JOHN ALBERT WILSON.

